Trane GGAA, GZAA, GGBA, GZBA Installation, Operation And Maintenance Manual

Installation, Operation, and Maintenance

Indoor Make-Up Air Unit Arrangements

For Heating, Cooling, and Ventilating Systems

MMooddeellss::

GGAA GGBA

GZAA GZBA

Only qualified personnel should install and service the equipment. The installation, starting up, and servicing of heating, ventilating, and air-conditioning equipment can be hazardous and requires specific knowledge and training. Improperly installed, adjusted or altered equipment by an unqualified person could result in death or serious injury. When working on the equipment, observe all precautions in the literature and on the tags, stickers, and labels that are attached to the equipment.

May 2017

SSAAFFEETTYY WWAARRNNIINNGG

MMUUAA--SSVVXX000055BB--EENN

Introduction

Read this manual thoroughly before operating or servicing this unit.

Warnings, Cautions, and Notices

Safety advisories appear throughout this manual as required. Your personal safety and the proper operation of this machine depend upon the strict observance of these precautions.

The three types of advisories are defined as follows:

Indicates a potentially hazardous situation which, if not avoided, could result in death or serious injury.

Indicates a potentially hazardous situation which, if not avoided, could result in minor or moderate injury. It could also be used to alert against unsafe practices.

Indicates a situation that could result in equipment or property-damage only accidents.

Important Environmental Concerns

Scientific research has shown that certain man-made chemicals can affect the earth’s naturally occurring stratospheric ozone layer when released to the atmosphere. In particular, several of the identified chemicals that may affect the ozone layer are refrigerants that contain Chlorine, Fluorine and Carbon (CFCs) and those containing Hydrogen, Chlorine, Fluorine and Carbon (HCFCs). Not all refrigerants containing these compounds have the same potential impact to the environment. Trane advocates the responsible handling of all refrigerants-including industry replacements for CFCs and HCFCs such as saturated or unsaturated HFCs and HCFCs.

Important Responsible Refrigerant Practices

Trane believes that responsible refrigerant practices are important to the environment, our customers, and the air conditioning industry. All technicians who handle refrigerants must be certified. The Federal Clean Air Act (Section 608) sets forth the requirements for handling, reclaiming, recovering and recycling of certain refrigerants and the equipment that is used in these service procedures. In addition, some states or municipalities may have additional requirements that must also be adhered to for responsible management of refrigerants. Know the applicable laws and follow them.

PPrrooppeerr FFiieelldd WWiirriinngg aanndd GGrroouunnddiinngg RReeqquuiirreedd!!

FFaaiilluurree ttoo ffoollllooww ccooddee ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. AAllll ffiieelldd wwiirriinngg MMUUSSTT bbee ppeerrffoorrmmeedd bbyy qquuaalliiffiieedd ppeerrssoonnnneell.. IImmpprrooppeerrllyy iinnssttaalllleedd aanndd

ggrroouunnddeedd ffiieelldd wwiirriinngg ppoosseess FFIIRREE aanndd EELLEECCTTRROOCCUUTTIIOONN hhaazzaarrddss.. TToo aavvooiidd tthheessee hhaazzaarrddss,, yyoouu MMUUSSTT ffoollllooww rreeqquuiirreemmeennttss ffoorr ffiieelldd wwiirriinngg iinnssttaallllaattiioonn aanndd ggrroouunnddiinngg aass ddeessccrriibbeedd iinn NNEECC aanndd yyoouurr llooccaall//ssttaattee//nnaattiioonnaall eelleeccttrriiccaall ccooddeess..

WWAARRNNIINNGG

MUA-SVX005B-EN

IInnttrroodduuccttiioonn

WWAARRNNIINNGG

PPeerrssoonnaall PPrrootteeccttiivvee EEqquuiippmmeenntt ((PPPPEE)) RReeqquuiirreedd!!

FFaaiilluurree ttoo wweeaarr pprrooppeerr PPPPEE ffoorr tthhee jjoobb bbeeiinngg uunnddeerrttaakkeenn ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. TTeecchhnniicciiaannss,, iinn oorrddeerr ttoo pprrootteecctt tthheemmsseellvveess ffrroomm ppootteennttiiaall eelleeccttrriiccaall,, mmeecchhaanniiccaall,, aanndd cchheemmiiccaall hhaazzaarrddss,, MMUUSSTT ffoollllooww pprreeccaauuttiioonnss iinn tthhiiss mmaannuuaall aanndd oonn tthhee ttaaggss,, ssttiicckkeerrss,, aanndd llaabbeellss,, aass wweellll aass tthhee iinnssttrruuccttiioonnss bbeellooww::

•• BBeeffoorree iinnssttaalllliinngg//sseerrvviicciinngg tthhiiss uunniitt,, tteecchhnniicciiaannss MMUUSSTT ppuutt oonn aallll PPPPEE rreeqquuiirreedd ffoorr tthhee wwoorrkk bbeeiinngg uunnddeerrttaakkeenn ((EExxaammpplleess;; ccuutt rreessiissttaanntt gglloovveess//sslleeeevveess,, bbuuttyyll gglloovveess,, ssaaffeettyy ggllaasssseess,, hhaarrdd hhaatt//bbuummpp ccaapp,, ffaallll pprrootteeccttiioonn,, eelleeccttrriiccaall PPPPEE aanndd aarrcc ffllaasshh ccllootthhiinngg)).. AALLWWAAYYSS rreeffeerr ttoo aapppprroopprriiaattee MMaatteerriiaall SSaaffeettyy DDaattaa SShheeeettss ((MMSSDDSS))//SSaaffeettyy DDaattaa SShheeeettss ((SSDDSS)) aanndd OOSSHHAA gguuiiddeelliinneess ffoorr pprrooppeerr PPPPEE..

•• WWhheenn wwoorrkkiinngg wwiitthh oorr aarroouunndd hhaazzaarrddoouuss cchheemmiiccaallss,, AALLWWAAYYSS rreeffeerr ttoo tthhee aapppprroopprriiaattee MMSSDDSS//SSDDSS aanndd OOSSHHAA//GGHHSS ((GGlloobbaall HHaarrmmoonniizzeedd SSyysstteemm ooff CCllaassssiiffiiccaattiioonn aanndd LLaabbeelllliinngg ooff CChheemmiiccaallss)) gguuiiddeelliinneess ffoorr iinnffoorrmmaattiioonn oonn aalllloowwaabbllee ppeerrssoonnaall eexxppoossuurree lleevveellss,, pprrooppeerr rreessppiirraattoorryy pprrootteeccttiioonn aanndd hhaannddlliinngg iinnssttrruuccttiioonnss..

•• IIff tthheerree iiss aa rriisskk ooff eenneerrggiizzeedd eelleeccttrriiccaall ccoonnttaacctt,, aarrcc,, oorr ffllaasshh,, tteecchhnniicciiaannss MMUUSSTT ppuutt oonn aallll PPPPEE iinn aaccccoorrddaannccee wwiitthh OOSSHHAA,, NNFFPPAA 7700EE,, oorr ootthheerr ccoouunnttrryy--ssppeecciiffiicc rreeqquuiirreemmeennttss ffoorr aarrcc ffllaasshh pprrootteeccttiioonn,, PPRRIIOORR ttoo sseerrvviicciinngg tthhee uunniitt.. NNEEVVEERR PPEERRFFOORRMM AANNYY SSWWIITTCCHHIINNGG,, DDIISSCCOONNNNEECCTTIINNGG,, OORR VVOOLLTTAAGGEE TTEESSTTIINNGG WWIITTHHOOUUTT PPRROOPPEERR EELLEECCTTRRIICCAALL PPPPEE AANNDD AARRCC FFLLAASSHH CCLLOOTTHHIINNGG.. EENNSSUURREE EELLEECCTTRRIICCAALL MMEETTEERRSS AANNDD EEQQUUIIPPMMEENNTT AARREE PPRROOPPEERRLLYY RRAATTEEDD FFOORR IINNTTEENNDDEEDD VVOOLLTTAAGGEE..

Trademarks

WWAARRNNIINNGG

TTooxxiicc FFuummeess aanndd FFiibbeerrss!!

IInnssttaallll,, ooppeerraattee aanndd mmaaiinnttaaiinn uunniitt iinn aaccccoorrddaannccee wwiitthh mmaannuuffaaccttuurreerr''ss iinnssttrruuccttiioonnss ttoo aavvooiidd eexxppoossuurree ttoo ffuueell ssuubbssttaanncceess oorr ssuubbssttaanncceess ffrroomm iinnccoommpplleettee ccoommbbuussttiioonn wwhhiicchh ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iillllnneessss.. TThhee SSttaattee ooff CCaalliiffoorrnniiaa hhaass ddeetteerrmmiinneedd tthhaatt tthheessee ssuubbssttaanncceess mmaayy ccaauussee ccaanncceerr,, bbiirrtthh ddeeffeeccttss,, oorr ootthheerr rreepprroodduuccttiivvee hhaarrmm.. IInnssttaallll aanndd SSeerrvviiccee tthhiiss pprroodduucctt ttoo aavvooiidd eexxppoossuurree ttoo aaiirrbboorrnnee ppaarrttiicclleess ooff ggllaasssswwooooll ffiibbeerrss aanndd//oorr cceerraammiicc ffiibbeerrss kknnoowwnn ttoo tthhee SSttaattee ooff CCaalliiffoorrnniiaa ttoo ccaauussee ccaanncceerr tthhrroouugghh iinnhhaallaattiioonn..

This document and the information in it are the property of Trane, and may not be used or reproduced in whole or in part without written permission. Trane reserves the right to revise this publication at any time, and to make changes to its content without obligation to notify any person of such revision or change.

All trademarks referenced in this document are the trademarks of their respective owners.

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Table of Contents

Receiving Instructions . . . . . . . . .. . . . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . 6

Pre-Installation Instructions. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 6

General Safety Requirements. . . . . . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . . 7

Locations to Avoid . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Rigging . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 9

Installation. . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . . .. . . . . . . . .. . . . . . 11

Location . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Combustion Air Considerations . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Mounting Height. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 11

Suspension . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Mounting On Field-Furnished Supports. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 12

Installation Clearances . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 13

Access Panel Removal . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 14

Venting† . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 15

Air For Combustion . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Duct Connections . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Gas Piping†† . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 16

Modulating Gas Control (Optional)* . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 17

Electrical Connections. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 18

DX Coil Equipped Units (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Chilled Water Coil Equipped Units (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 20

Evaporative Cooler Equipped Units (Optional). . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 21

Operation. . . . . . . . . . . . .. . . . . . . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . 22

General Information . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Gas Control System. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Sequence of Operation. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 22

Optional Gas Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Air Handling Requirements and Adjustments . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 23

Lighting. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Gas Input Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 25

Pilot Adjustment. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 26

Primary Air Shutter Adjustment . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Controls. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 27

Start-Up . . . . . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . .. . . . . . . . . . . 28

Maintenance. . . . . . . . .. . . . . . . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . . .. . . . . . . . 30

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TTaabbllee ooff CCoonntteennttss

Main Burner Drawer Assembly. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 30

High Limit and/or Safety Limit Maintenance. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 31

Seasonal Maintenance . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Filters. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 32

Air Blower. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 33

Troubleshooting . .. . . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . 36

Troubleshooting Guide — Air Blower. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 36

Troubleshooting Guide — Electric Motors. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 38

Troubleshooting Guide — Fan Assembly . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 40

Troubleshooting Guide — DX Cooling Coil. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 41

Troubleshooting Guide — Chilled Water Cooling Coil . . . . . . . . . . . . . . . . . . . . . . . . . . 42

Dimensional Data — Arrangements . . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . .. . . 43

Unit Type GG, Indoor Arrangements B, Capacities 10–80 . . . . . . . . . . . . . . . . . . . . . . . 44

Unit Type GG, Indoor Arrangements D, Capacities 10–80 . . . . . . . . . . . . . . . . . . . . . . . 44

Unit Type GG, Indoor Arrangements G, Capacities 20–12. . . . . . . . . . . . . . . . . . . . . . . 45

Unit Type GG, Indoor Arrangements K, Capacities 10–80 . . . . . . . . . . . . . . . . . . . . . . . 46

Motor Electric Data . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . .. . . . . . . . . . . . 47

Unit Shipping Weights. . . . . . . . .. . . . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . . . .. . . . . . . . 48

Coil Cabinet Dimensional Data. . . . . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . . .. 50

Center of Gravity . . .. . . . . . . . . . . . . . . . . . . .. . . . . . . . . . . . . . . . . . .. . . . . . . . .. . . . . . . . . . 51

Center of Gravity Data. . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 51

Indoor Make-Up Air Unit Number Description . . . . . . . . . . . . . . . . . . . . .. . . . . . . . . .. 53

Indoor Make-Up Air Products . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . . 55

Gas Equipment Start-Up. . . . . . .. . . . . . . . . .. . . . . . . . .. . . . . . . . . .. . . . . . . . . .. . . . . . . . 57

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Receiving Instructions

Inspect shipment immediately when received to determine if any damage has occurred to the crate during shipment. After the unit has been uncrated, check for any visible damage to the unit. Check motor position and turn blower wheel to determine if damage has occurred to these critical parts. If any damage is found, the cosignee should sign the bill of lading indicating such damage and immediately file claim for damage with transportation company.

Pre-Installation Instructions

This equipment has been test fired and inspected. It has been shipped free from defects from our factory. However, during shipment and installation, problems such as loose wires, leaks or loose fasteners may occur. It is the installer's responsibility to inspect and correct any problems that may be found.

When the unit is received and uncrated, check the external data plate and all labels on the unit for type of gas, electrical, and operational specifications to confirm that these agree with those at point of installation. The unit is equipped with an Indoor Duct Furnace. Check the data plate and all labels located inside each furnace.

Every unit will include an informational packet which will include the following:

• Blower manual

• Indoor duct furnace and evaporative cooler/cooling coil manuals (if applicable)

• Wiring diagram(s)

• Factory installed service convenience options manual (if applicable)

• Special controls/data sheets

NNoottee:: It is the owner’s responsibility to provide any scaffolding or other apparatus required to

perform emergency service or annual/periodic maintenance to this equipment.

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General Safety Requirements

HHaazzaarrddoouuss SSeerrvviiccee PPrroocceedduurreess!!

FFaaiilluurree ttoo ffoollllooww aallll pprreeccaauuttiioonnss iinn tthhiiss mmaannuuaall aanndd oonn tthhee ttaaggss,, ssttiicckkeerrss,, aanndd llaabbeellss ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. TTeecchhnniicciiaannss,, iinn oorrddeerr ttoo pprrootteecctt tthheemmsseellvveess ffrroomm ppootteennttiiaall eelleeccttrriiccaall,, mmeecchhaanniiccaall,, aanndd cchheemmiiccaall hhaazzaarrddss,, MMUUSSTT ffoollllooww pprreeccaauuttiioonnss iinn tthhiiss mmaannuuaall aanndd oonn tthhee ttaaggss,, ssttiicckkeerrss,, aanndd llaabbeellss,, aass wweellll aass tthhee ffoolllloowwiinngg iinnssttrruuccttiioonnss:: UUnnlleessss ssppeecciiffiieedd ootthheerrwwiissee,, ddiissccoonnnneecctt aallll eelleeccttrriiccaall ppoowweerr iinncclluuddiinngg rreemmoottee ddiissccoonnnneecctt aanndd ddiisscchhaarrggee aallll eenneerrggyy ssttoorriinngg ddeevviicceess ssuucchh aass ccaappaacciittoorrss bbeeffoorree sseerrvviicciinngg.. FFoollllooww pprrooppeerr lloocckkoouutt//ttaaggoouutt pprroocceedduurreess ttoo eennssuurree tthhee ppoowweerr ccaann nnoott bbee iinnaaddvveerrtteennttllyy eenneerrggiizzeedd.. WWhheenn nneecceessssaarryy ttoo wwoorrkk wwiitthh lliivvee eelleeccttrriiccaall ccoommppoonneennttss,, hhaavvee aa qquuaalliiffiieedd lliicceennsseedd eelleeccttrriicciiaann oorr ootthheerr iinnddiivviidduuaall wwhhoo hhaass bbeeeenn ttrraaiinneedd iinn hhaannddlliinngg lliivvee eelleeccttrriiccaall ccoommppoonneennttss ppeerrffoorrmm tthheessee ttaasskkss..

• The use or storage of gasoline or other flammable vapors or liquids in open containers in the vicinity of this appliance is hazardous.

• If you smell gas:

– Do not touch electrical switches.

– Extinguish any open flames.

– Immediately call your gas supplier.

• Open all disconnect switches before installing the unit. If the power disconnect is out of sight, lock it in the open position and tag it to prevent unexpected application of power. Failure to do so may result in personal injury or death from electrical shock.

• Failure to comply with the general requirements may result in extensive property damage, severe personal injury or death.

• Never service any component without ﬁrst disconnecting all electrical and gas supplies to the unit or severe personal injury or death may occur.

• Do not alter the duct furnace in any way or damage to the unit, severe personal injury or death will occur.

• Do not attempt to convert the heater for use with a fuel other than the one intended. Such conversion is dangerous, as it could create unsafe conditions that result in death, serious injury or substantial property damage.

• Do not depend upon a thermostat or other switch as the sole means of disconnecting power when installing or servicing heater. Always disconnect power at main circuit breaker as described above. Failure to do so could result in fatal electric shock.

1. Installation must be made in accordance with local codes, or in absence of local codes, with ANSI Standard Z223.1-1996 (N.F.P.A. No 54) “National Fuel Gas Code”, or the latest edition of. All ANSI and NFPA Standards referred to in these installation instructions are the ones that were applicable at the time the design of this appliance was certiﬁed. The ANSI Standards are available from the American Gas Association, 1515 Wilson Boulevard, Arlington, Virginia 22209. The NFPA Standards are available from the National Fire Protection Association, Batterymarch Park, Quincy, Massachusetts 02269. The heaters are designed for use in airplane hangers when installed in accordance with ANSI/NFPA No. 409 and in public garages when installed in accordance with the NFPA No. 88A and NFPA No. 88B.

2. If installed in Canada, the installation must conform with local building codes, or in the absence of local building codes, with the current CGA-B149.1 or B149.2 “Installation Codes for Gas Burning Appliances and Equipment”. These indoor duct furnaces have been designed for and certified to comply with CGA 2.6.

3. No alterations are to be made on this equipment.

The duct furnace section of these make-up air units are certiﬁed by the American Gas Association for use with natural and LP (propane) gases!

4. Make certain that the power sources conform to the requirements of the heater.

WWAARRNNIINNGG

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GGeenneerraall SSaaffeettyy RReeqquuiirreemmeennttss

5. Follow installation instructions CAREFULLY to avoid creating unsafe conditions. All wiring should be done and checked by a qualiﬁed electrician, using copper wire only. All gas connections should be made and leak-tested by a suitably qualiﬁed individual, per instructions in this manual.

6. Use only the fuel for which the heater is designed (see nameplate). Using LP gas in a heater that requires natural gas, or vice versa, will create the risk of gas leaks, carbon monoxide poisoning and explosion.

7. Make certain that power source conforms to electrical requirements of heater. Disconnect power before installing or servicing heater. If power disconnect is out of sight, lock it in open position and tag it to prevent unexpected application of power. Failure to do so could result in fatal electric shock.

8. Special attention must be given to any grounding information pertaining to this heater. To prevent the risk of electrocution, the heater must be securely and adequately grounded. This should be accomplished by connecting a grounded conductor from the service panel to the conduit box of the heater. To ensure proper ground, the grounding means must be tested by qualiﬁed ﬁeld electrician.

9. Do not insert fingers or foreign objects into the heater or its air moving device. Do not block or tamper with the heater in any manner while in operation or just after it has been turned off, as some parts may be hot enough to cause injury.

10. This heater is intended for general heating applications ONLY. It must NOT be used in potentially dangerous locations such as ﬂammable explosive, chemical-laden or wet atmospheres.

In cases in which property damage may result from malfunction of the heater, a backup system or a temperature sensitive alarm should be used.

WWAARRNNIINNGG

FFiirree HHaazzaarrdd aanndd TTooxxiicc FFuummeess!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. TThhee ooppeenn eenndd ooff ppiippiinngg ssyysstteemmss bbeeiinngg ppuurrggeedd mmuusstt NNOOTT ddiisscchhaarrggee iinnttoo aarreeaass wwhheerree tthheerree aarree ssoouurrcceess ooff iiggnniittiioonn oorr iinnttoo ccoonnffiinneedd ssppaacceess UUNNLLEESSSS pprreeccaauuttiioonnss aarree ttaakkeenn aass ffoolllloowwss::

•• BByy vveennttiillaattiioonn ooff tthhee ssppaaccee..

•• BByy ccoonnttrroolllliinngg tthhee ppuurrggiinngg rraattee..

•• BByy eelliimmiinnaattiinngg aallll hhaazzaarrddoouuss ccoonnddiittiioonnss

Unless otherwise speciﬁed, the following conversions may be used for calculating SI unit measurements:

• 1 inch = 25.4 mm

• 1 foot = 0.305 m

• 1 gallon = 3.785 L

• 1 pound = 0.454 kg

• 1 psig = 6.894 kPa

• 1 cubic foot = 0.028 m

• 1000 Btu/Cu. Ft. = 37.5 MJ/m

• 1000 Btu per hour = 0.293 kW

• 1 inch water column = 0.249 kPa

• liter/second = CFM x 0.472

• meter/second = FPM ÷ 196.8

MUA-SVX005B-EN

Locations to Avoid

Unit heaters should not be installed within corrosive or ﬂammable atmospheres. Do not locate any gas ﬁred heater where air for combustion contains chlorinated vapors or acid fumes. Avoid locations where extreme drafts can affect burner operation.

HHeeaatt EExxcchhaannggeerr DDaammaaggee!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss ccoouulldd rreessuulltt iinn ddaammaaggee ttoo tthhee hheeaatt eexxcchhaannggeerr aanndd vvooiidd tthhee wwaarrrraannttyy.. DDoo nnoott llooccaattee aannyy ggaass ffiirreedd hheeaatteerr wwhheerree aaiirr ffoorr ccoommbbuussttiioonn ccoonnttaaiinnss iimmppuurriittiieess ssuucchh aass cchhlloorriinnaatteedd vvaappoorrss oorr aacciidd ffuummeess.. AAvvooiidd llooccaattiioonnss wwhheerree eexxttrreemmee ddrraaffttss ccaann aaffffeecctt bbuurrnneerr ooppeerraattiioonn..

The venting system must be installed in accordance with heater manufacturer’s instructions. The venting system is an integral part of the unit and must not be altered in the ﬁeld!

Rigging

HHeeaavvyy OObbjjeecctt!!

FFaaiilluurree ttoo ffoollllooww tthheessee iinnssttrruuccttiioonnss ccoouulldd rreessuulltt iinn ddeeaatthh,, sseerriioouuss iinnjjuurryy,, aanndd pprrooppeerrttyy ddaammaaggee.. MMaakkee cceerrttaaiinn tthhaatt tthhee lliiffttiinngg mmeetthhooddss uusseedd ttoo lliifftt tthhee dduucctt ffuurrnnaaccee aarree ccaappaabbllee ooff ssuuppppoorrttiinngg tthhee wweeiigghhtt ooff tthhee hheeaatteerr dduurriinngg iinnssttaallllaattiioonn.. EEnnssuurree tthhaatt aallll hhaarrddwwaarree uusseedd iinn tthhee ssuussppeennssiioonn ooff eeaacchh dduucctt ffuurrnnaaccee iiss pprrooppeerrllyy rraatteedd ffoorr tthhee jjoobb.. MMaakkee cceerrttaaiinn tthhaatt tthhee ssttrruuccttuurree ttoo wwhhiicchh tthhee dduucctt ffuurrnnaaccee iiss ttoo bbee mmoouunntteedd iiss ccaappaabbllee ooff ssaaffeellyy ssuuppppoorrttiinngg iittss wweeiigghhtt.. UUnnddeerr nnoo cciirrccuummssttaanncceess mmuusstt tthhee ggaass lliinneess,, vveennttiinngg ssyysstteemm,, oorr tthhee eelleeccttrriiccaall ccoonndduuiitt bbee uusseedd ttoo ssuuppppoorrtt tthhee dduucctt ffuurrnnaaccee.. DDoo nnoott aallllooww oobbjjeeccttss ((ii..ee.. llaaddddeerr)) oorr ppeeooppllee ttoo lleeaann aaggaaiinnsstt tthhee ggaass lliinneess,, vveennttiinngg ssyysstteemm,, oorr eelleeccttrriiccaall ccoonndduuiitt ffoorr ssuuppppoorrtt..

GGeenneerraall SSaaffeettyy RReeqquuiirreemmeennttss

NNOOTTIICCEE

WWAARRNNIINNGG

Rig unit using either belt or cable slings. Use spreader bars to protect the top of the unit when it is lifted. See Figure 1, p. 10 and Figure 2, p. 10. Make sure all hardware used in the lifting/ mounting process is tightened and secured.

On units with a total length of less than 104" (2642mm), excluding evaporative cooler, two holes are provided in the base rail on each side of the unit. Slide pipes beneath the unit through these holes and attach rigging to pipes for lifting the unit.

On units with a total length of a 104" (2642mm) or greater, excluding evaporative cooler, lifting lugs/brackets attached to the base rail are provided. Once the unit is set in place these lifting brackets may be removed if required.

Attach rigging to lugs/brackets for lifting the unit. For distance between lifting lugs/brackets and total unit lengths, refer to the Dimensional Data section of this manual. Also see Center of Gravity and Weights sections in this manual prior to lifting and apply accordingly to the lifting process.

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GGeenneerraall SSaaffeettyy RReeqquuiirreemmeennttss

Figure 1. Hoisting of Make-Up Air Unit Without Lifting Brackets

Figure 2. Hoisting of Make-Up Air Unit With Lifting Brackets

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Installation

Location

WWAARRNNIINNGG

MMoouunnttiinngg IInntteeggrriittyy!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonn bbeellooww ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy oorr ppoossssiibbllee eeqquuiippmmeenntt oorr pprrooppeerrttyy--oonnllyy ddaammaaggee.. EEnnssuurree tthhee rrooooff ssttrruuccttuurree ssuuppppoorrttss aarree ssttrroonngg eennoouugghh ttoo ssuuppppoorrtt tthhee wweeiigghhtt ooff tthhee uunniitt aanndd aannyy aacccceessssoorriieess..

Before placing the Make-Up Air unit in its permanent location, make certain that the structure is capable of carrying the additional load of this equipment. Check the unit weight given at the end of this manual.

Refer to Installation and Clearances section for required clearances to combustible material, and

Figure 5, p. 14 for manufacturer’s recommendations.

WWAARRNNIINNGG

PPrrooppeerr IInnssttaallllaattiioonn LLooccaattiioonn RReeqquuiirreedd!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. DDoo nnoott ppllaaccee uunniitt iinn aa llooccaattiioonn wwhheerree sseerrvviiccee ppeerrssoonnnneell ccaann nnoott ssaaffeellyy sseerrvviiccee tthhiiss eeqquuiippmmeenntt ((ii..ee.. rrooooff eeddggee,, sskkyylliigghhttss,, eettcc..))..

IImmppoorrttaanntt:: When selecting a location for these Make-Up Air Units, both the size of the unit and

the heating requirements of the building must be considered.

If a variable frequency drive (VFD) has been ordered with the unit, consideration should be made for the VFD operating temperature range: 14°F to 130°F. For temperatures below 14°F, VFD must be factory-installed within the VFD Enclosure accessory (Model Digit 22, option 9), or fieldmounted indoors.

Combustion Air Considerations

The presence of chlorine vapors or other corrosive vapors in the combustion air supply for gasﬁred heating equipment presents a potential corrosive hazard. Chlorine will, when exposed to ﬂame, precipitate from the compound (usually freon or degreaser vapors) and go into solution with any condensation that is present in the heat exchanger or associated parts. The result is hydrochloric acid which will readily attack all metals, including 300 grade stainless steel. Care should be taken to separate these vapors from the combustion process.

Mounting Height

1. When a Gas Fired Make-Up Air Handler is discharging directly into the heated space, a mounting height of eight feet (2.4m) above the ﬂoor is recommended. Less efﬁcient air distribution results at higher levels.

2. When Gas Fired Indoor Make-Up Air Handlers are installed in airplane hangars, NFPA speciﬁes that the units must be at least ten feet (3.0m) above the upper surface of wings or engine enclosures of the highest aircraft to be stored in the hangar. This measurement should be made from the wing or engine enclosure (whichever is higher from the ﬂoor) to the bottom of the heater. Heaters must be installed at least eight feet (2.4m) above the ﬂoor in shops, ofﬁces, and other sections of the hangar where aircraft are not stored or housed. Refer to NFPA 409 Aircraft Hangars.

3. In parking structures, Gas Fired Indoor Make-Up Air Handlers must be installed so that the burner ﬂames are located 18 in. (45mm) above the ﬂoor or protected by a partition not less than 18 in. (457mm) high as speciﬁed in NFPA 88A Parking Structures.

4. In public repair garages, Gas Fired Make-Up Air Handlers must be installed in a detached building or room separated from repair areas as speciﬁed in NFPA 88B Repair Garages.

MUA-SVX005B-EN

IInnssttaallllaattiioonn

Suspension

WWAARRNNIINNGG

HHeeaavvyy OObbjjeecctt!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy,, aanndd pprrooppeerrttyy ddaammaaggee.. TThhee uunniitt sshhoouulldd nneevveerr bbee lliifftteedd bbyy tthhee ffaann hhoouussiinngg,, mmoottoorr mmoouunnttiinngg,, ggrriillllee oorr fflluuee ccoonnnneeccttiioonn.. TThheessee aarree nnoott ddeessiiggnneedd ttoo ssuuppppoorrtt tthhee ttoottaall wweeiigghhtt aanndd mmaayy bbrreeaakk..

Units can be set on supports or suspended by rod hangers from the sub-frame (and lifting brackets).

IImmppoorrttaanntt:: Any unit that has a side base rail longer than 104" (2.6m) requires additional field

furnished supports by a qualiﬁed installer. Refer to all dimensional data and center of gravity information in this manual. If further information is required, contact the manufacturer’s technical service department.

The unit must be hung level from side to side and front to back, using the four (9/16" diameter) hanging holes (see ) in the skid rail, and 3/8" or 1/2" threaded rod or pipe.

WWAARRNNIINNGG

HHeeaavvyy OObbjjeecctt!!

Figure 3. Suspension Point Locations

Mounting On Field-Furnished Supports

Single, double, triple duct furnace models have base rails which are suitable for mounting either directly on solid planking or steel channels. (Refer to Figure 4, p. 13).

MUA-SVX005B-EN

Installation Clearances

Minimum clearances to combustible material are shown on the unit data plate. It is important that clearances be maintained for servicing the unit, and that minimum clearances are provided from the unit to combustible material. Clearances around the ﬁeld installed optional outside air hood (if unit is to be connected to one) must be unobstructed. See Figure 5, p. 14.

Every gas appliance should be located with respect to building construction and other equipment so as to permit access to the unit. Clearances between vertical walls and the vertical sides of the heater should be no less than 6 inches (152mm). Minimum clearance between the top of the heater and the ceiling is 6 inches (152mm). The minimum clearance from combustibles to the bottom of the furnace is 6 inches (the distance between the unit skid rail bottom and the furnace bottom is approximately 7 inches (178mm) which meets this 6 inch clearance requirement to combustible materials). The minimum clearance from combustibles to the ﬂue collector is 6 inches (152mm). Adequate clearance must be maintained around all openings into the combustion chamber. Adequate clearance should be planned for the width of the unit to pull out the burner drawer. See Figure 5, p. 14 and Tables 5 and 6.

A pilot burner plate is provided in the Duct Furnace for easy access to the pilot burner and ignition system without opening burner drawer compartment. Accessibility is also provided for the safety switches included with your unit without removal of jacket. Refer to the maintenance section and the Indoor Duct Furnace manual for more information.

IInnssttaallllaattiioonn

Figure 4. Mounting on Field-Furnished Supports

HHeeaavvyy OObbjjeecctt!!

MUA-SVX005B-EN

WWAARRNNIINNGG

IInnssttaallllaattiioonn

WWAARRNNIINNGG

HHeeaavvyy OObbjjeecctt!!

NNoottee:: Recommended ceiling clearance 36" (914mm) is to the top of the furnace venting collar

assembly.

Figure 5. Manufacturer’s Recommended Service Clearances

Access Panel Removal

HHaazzaarrddoouuss VVoollttaaggee aanndd GGaass!!

FFaaiilluurree ttoo ttuurrnn ooffff ggaass oorr ddiissccoonnnneecctt ppoowweerr bbeeffoorree sseerrvviicciinngg ccoouulldd rreessuulltt iinn aann eexxpplloossiioonn oorr eelleeccttrrooccuuttiioonn wwhhiicchh ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. TTuurrnn ooffff tthhee ggaass ssuuppppllyy aanndd ddiissccoonnnneecctt aallll eelleeccttrriicc ppoowweerr,, iinncclluuddiinngg rreemmoottee ddiissccoonnnneeccttss,, bbeeffoorree sseerrvviicciinngg tthhee uunniitt.. FFoollllooww pprrooppeerr lloocckkoouutt//ttaaggoouutt pprroocceedduurreess ttoo eennssuurree tthhee ppoowweerr ccaann nnoott bbee iinnaaddvveerrtteennttllyy eenneerrggiizzeedd..

The air handler section(s) of this unit are equipped with hinged access doors. The hinged doors include dual, quick opening tool-less latches and full perimeter gasketing to assure a water resistant seal. Door stops are included to guard against closure while open.

The furnace section service panel is easily accessible - simply remove the mounting screws on the lower jacket panel to disengage and remove the panel; repeat procedure for installing back in place. SSeeee tthhee mmaaiinntteennaannccee sseeccttiioonn aanndd tthhee dduucctt ffuurrnnaaccee mmaannuuaall ffoorr mmoorree iinnffoorrmmaattiioonn rreeggaarrddiinngg bbuurrnneerr ddrraawweerr rreemmoovvaall//aacccceessssiibbiilliittyy..

WWAARRNNIINNGG

MUA-SVX005B-EN

Venting†

IInnssttaallllaattiioonn

All venting installations shall be in accordance with the latest edition of Part 7, “Venting of Equipment”, of the National Fuel Gas Code, ANSI Z223.1-1996 (or the latest edition), or applicable provisions of local building codes.

WWAARRNNIINNGG

CCaarrbboonn MMoonnooxxiiddee PPooiissoonniinngg!!

FFaaiilluurree ttoo ffoollllooww tthheessee iinnssttrruuccttiioonnss ccoouulldd rreessuulltt iinn CCaarrbboonn MMoonnooxxiiddee PPooiissoonniinngg ((ssyymmppttoommss iinncclluuddee ggrrooggggiinneessss,, lleetthhaarrggyy,, iinnaapppprroopprriiaattee ttiirreeddnneessss,, oorr fflluu--lliikkee ssyymmppttoommss)) wwhhiicchh ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. NNeevveerr ooppeerraattee aa uunniitt wwiitthhoouutt ccoommbbuussttiioonn aaiirr aanndd fflluuee ggaass ppiippiinngg iinn ppllaaccee.. EEaacchh uunniitt MMUUSSTT hhaavvee aann iinnddiivviidduuaall vveenntt ppiippee!! EEaacchh uunniitt MMUUSSTT NNOOTT bbee ccoonnnneecctteedd ttoo ootthheerr vveenntt ssyysstteemmss oorr ttoo aa cchhiimmnneeyy.. YYoouurr vveennttiinngg ssyysstteemm mmuusstt nnoott bbee bblloocckkeedd bbyy aannyy ssnnooww,, ssnnooww ddrriiffttss,, oorr aannyy ffoorreeiiggnn mmaatttteerr.. IInnssppeecctt yyoouurr vveennttiinngg ssyysstteemm ttoo eennssuurree aaddeeqquuaattee vveennttiillaattiioonn eexxiissttss aatt aallll ttiimmeess!!

WWAARRNNIINNGG

PPrrooppeerr VVeennttiinngg RReeqquuiirreedd!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. AAllll vveennttiinngg iinnssttaallllaattiioonnss sshhaallll bbee iinn aaccccoorrddaannccee wwiitthh tthhee NNaattiioonnaall FFuueell GGaass CCooddee,, AANNSSII ZZ222233..11 oorr aapppplliiccaabbllee pprroovviissiioonnss ooff llooccaall bbuuiillddiinngg ccooddeess..

VVeennttiinngg iiss aann iinntteeggrraall ppaarrtt ooff tthhee uunniitt aanndd mmuusstt NNOOTT bbee aalltteerreedd iinn tthhee ffiieelldd..

Power Vented units feature a factory installed power venter and sealed ﬂue collector that controls combustion and excess air during the on-cycle.

Table 1. Vent Systems — Termination Clearance Requirements

Structure/Object

Door, window, or gravity vent inlet;

combustion air inlet for other

appliances

Forced air inlet within 10 feet 3 feet above

Adjoining building or parapet

Adjacent public walkways 7 feet above grade 7 feet (2.1m) above grade

Electric, gas meters & regulators

Above grade level*

9 inches for 10,000 to 50,000 BTU/

Minimum Clearances for Termination Locations

USA CANADA

9 inches (230mm) for 10,000 to

Hr input; 12 inches for input

exceeding 50,000 BTU/Hr.

10 feet

4 feet horizontal

1 foot

50,000 BTU/Hr input; 12 inches

(305mm) for input exceeding

3 feet (0.9m) horizontally from meter/regulator assembly. 6 feet (1.8m), any direction, from a gas

service regulator vent outlet

50,000 BTU/Hr.

6 feet (1.8m)

10 feet (3.04m)

1 foot (0.3m)

NNoottee:: *Minimum above maximum snow depth, or per local code, whichever is greater.

†Refer to the Indoor Duct Furnace Manual for more venting requirements.

MUA-SVX005B-EN

IInnssttaallllaattiioonn

Air For Combustion

CCaarrbboonn MMoonnooxxiiddee PPooiissoonniinngg!!

Appliances shall be installed in a location in which the facilities for ventilation permit satisfactory combustion of gas, proper venting, and the maintenance of ambient temperature at safe limits under normal conditions for use.

Appliances shall be located in such a manner as not to interfere with proper circulation of air within the conﬁned space. When buildings are so tight that normal inﬁltration does not meet air requirements, outside air shall be introduced per Sections 1.3.4.2 and 1.3.4.3 of ANSI Z223.1 for combustion air requirements. A permanent opening or openings having a total free area of not less than one square inch per 5,000 Btu/Hr of total input rating of all appliance within the space shall be provided. Refer to the Indoor Duct Furnace Manual supplied with your unit for more requirements.

WWAARRNNIINNGG

Duct Connections

All ductwork must be properly supported so that no strain is put on the unit. Do not alter or bend the discharge duct ﬂanges supplied on your make-up air unit.

Duct connections must have a removable access panel in the duct which is connected to a duct furnace. The duct openings shall be accessible when the unit is installed in service, and shall be of such size that smoke or reﬂected light may be observed inside the casing to indicate the presence of leaks in the heating element. The covers for the panels shall be attached in such a manner as to prevent leaks. Ducts (or optional outside air hoods) exposed to the outdoors must be insulated and sealed to prevent water from entering either the unit or building through the duct.

If a single, double or triple duct furnace only unit is connected to a return air duct, or any other inlet air restriction, the appliance shall be installed on the positive pressure side of the air circulating blower.

When connecting return air duct to Standard or High CFM cabinets, attach duct to return air opening ﬂange when no dampers are used. Otherwise, if dampers are used, attach return air duct around collar at bottom of damper assembly. Also refer to the Dimensional Data section of this manual, Submittal Data Sheets and Indoor Duct Furnace Manual speciﬁed for your unit.

Gas Piping††

All gas piping must be installed in accordance with local codes. It is required that a ground union be installed adjacent to the gas valve of each duct furnace, and a ground union be installed just external of each duct furnace for unit servicing. On vertical runs, a drip leg should be provided upstream of any control manifold. A gas shutoff valve should be, or may be required by local codes, installed upstream of the external ground union for each duct furnace. A 1/8 inch N.P.T. plugged tapping, accessible for test gauge connection, must be installed immediately upstream of the unit gas supply connection.

NNoottee:: †† For complete Gas Piping installation, see the Indoor Gas-Fired Duct Furnace Installation

Gas piping must be installed to allow for removal of burner drawer for unit maintenance. Refer to

Figure 5, p. 14, and the maintenance section.

and Service Manual.

MUA-SVX005B-EN

IInnssttaallllaattiioonn

WWAARRNNIINNGG

FFiirree HHaazzaarrdd!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinn ddaammaaggee ttoo tthhee uunniitt ggaass vvaallvvee aanndd ccaauussee aa ffiirree hhaazzaarrdd wwhhiicchh ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy..

•• DDoo NNOOTT ccoonnnneecctt ggaass ppiippiinngg ttoo tthhiiss uunniitt uunnttiill aa ssuuppppllyy lliinnee pprreessssuurree// lleeaakk tteesstt hhaass bbeeeenn ccoommpplleetteedd..

•• DDoo NNOOTT rreellyy oonn aa ggaass sshhuuttooffff vvaallvvee ttoo iissoollaattee tthhee uunniitt wwhhiillee ccoonndduuccttiinngg ggaass pprreessssuurree//lleeaakk tteessttss.. TThheessee vvaallvveess mmaayy nnoott bbee ccoommpplleetteellyy sshhuuttooffff,, eexxppoossiinngg tthhee uunniitt ggaass vvaallvvee ttoo eexxcceessssiivvee pprreessssuurree..

•• DDoo nnoott oovveerr--ttiigghhtteenn tthhee iinnlleett ggaass ppiippiinngg aatt uunniitt ggaass vvaallvvee..

WWAARRNNIINNGG

EExxpplloossiioonn HHaazzaarrdd!!

FFaaiilluurree ttoo ffoollllooww ssaaffee lleeaakk tteesstt pprroocceedduurreess bbeellooww ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy oorr eeqquuiippmmeenntt oorr pprrooppeerrttyy--oonnllyy--ddaammaaggee.. NNeevveerr uussee aann ooppeenn ffllaammee ttoo ddeetteecctt ggaass lleeaakkss.. UUssee aa lleeaakk tteesstt ssoolluuttiioonn ffoorr lleeaakk tteessttiinngg..

The gas line should be supported so that no strain is placed on the unit. Pipe compounds which are not soluble to liquid petroleum gases must be used on threaded joints.

The appliance and its individual shutoff valve must be disconnected from the gas supply piping system during any pressure testing of that system at test pressures in excess of 1/2 psig (3.5 kPa).

The appliance must be isolated from the gas supply piping system by closing the individual manual shutoff valve during any pressure testing of the gas supply piping system at test pressures equal to or less than 1/2 psig (3.5 kPa).

For additional gas piping information, including pipe sizing and drip leg installation, refer to Indoor Gas-Fired Duct Furnace Installation and Service Manual.

For additional piping information, refer to the National Fuel Gas Code Z233.1 (latest edition).

IImmppoorrttaanntt:: If the gas duct furnace is to be ﬁred with LP gas, consult local LP gas dealer for piping

size information.

IImmppoorrttaanntt:: Unit installation for use with propane (bottled) gas must be made by a qualified LP

gas dealer or installer. He will insure proper joint compounds are used for making pipe connections; that air is purged from lines; that a thorough test is made for leaks before operating the unit; and that it is properly connected to propane gas supply system.

Before any connection is made to an existing line supplying other gas appliances, contact the local gas company to make certain that the existing line is of adequate size to handle the combined load.

Check all connections for leaks with soap solution.

Modulating Gas Control (Optional)*

• EElleeccttrroonniicc

– On units equipped with electronic modulating control, follow control manufacturer’s

installation instructions for sensing of outlet air temperature.

– **AAllssoo rreeffeerr ttoo tthhee IInnddoooorr DDuucctt FFuurrnnaaccee IInnssttaallllaattiioonn MMaannuuaall ssuupppplliieedd wwiitthh yyoouurr uunniitt..

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IInnssttaallllaattiioonn

Electrical Connections

HHaazzaarrddoouuss VVoollttaaggee!!

FFaaiilluurree ttoo ddiissccoonnnneecctt ppoowweerr bbeeffoorree sseerrvviicciinngg ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. DDiissccoonnnneecctt aallll eelleeccttrriicc ppoowweerr,, iinncclluuddiinngg rreemmoottee ddiissccoonnnneeccttss bbeeffoorree sseerrvviicciinngg.. FFoollllooww

pprrooppeerr lloocckkoouutt//ttaaggoouutt pprroocceedduurreess ttoo eennssuurree tthhee ppoowweerr ccaann nnoott bbee iinnaaddvveerrtteennttllyy eenneerrggiizzeedd.. VVeerriiffyy tthhaatt nnoo ppoowweerr iiss pprreesseenntt wwiitthh aa vvoollttmmeetteerr..

All electrical connections must conform to: ANSI/NFPA No. 70-1996 (or latest edition) National Electrical Code and applicable local codes. In Canada, to the Canadian Electrical Code, Part I CSA Standard C22.1.

The Make-Up Air packaged unit is wired at the factory and ready to be connected. Actual unit wiring will differ according to the options chosen. Each unit is shipped with its own wiring diagram; refer to this wiring diagram for all electrical connections to the unit.

All electrical connections, line voltage and thermostat, are made in the Electrical Cabinet (See ). Line voltage connections are made at the High Voltage Terminal Block. Thermostat connections are made at the Main Connection Board (See Figure 7, p. 19).

RRiisskk ooff EElleeccttrrooccuuttiioonn!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy.. DDOO NNOOTT uussee aannyy ttoooollss ((ii..ee.. ssccrreewwddrriivveerr,, pplliieerrss,, eettcc..)) aaccrroossss tthhee tteerrmmiinnaallss ttoo cchheecckk ffoorr ppoowweerr.. YYoouu MMUUSSTT uussee aa vvoollttmmeetteerr..

WWAARRNNIINNGG

Locate the thermostat in accordance with the instructions supplied with the thermostat. All ﬁeld wiring must have a minimum temperature rating of 85°C (185°F). Control wiring shall be a minimum of 18 gauge wire size. Control wiring must be sized for length of run.

Locate line voltage disconnect box per local codes. If mounting the disconnect box to the unit, never mount it to a unit access panel. Possible locations include the front of the blower or ﬁlter section (See Figure 8, p. 20). Electrical conduit must be routed so as not to interfere with removal of any access panel.

WWAARRNNIINNGG

FFiirree HHaazzaarrdd!!

FFaaiilluurree ttoo ffoollllooww iinnssttrruuccttiioonnss bbeellooww ccoouulldd ccaauussee aa ffiirree wwhhiicchh ccoouulldd rreessuulltt iinn ddeeaatthh oorr sseerriioouuss iinnjjuurryy,, aanndd pprrooppeerrttyy ddaammaaggee.. DDOO NNOOTT jjuummppeerr ffaaccttoorryy wwiirriinngg!! MMiiss--wwiirriinngg ooff ssaaffeettyy cciirrccuuiittss ccoouulldd ccaauussee aa ffiirree.. FFoorr aallll wwiirriinngg ccoonnnneeccttiioonnss,, rreeffeerr ttoo tthhee wwiirriinngg ddiiaaggrraamm sshhiippppeedd wwiitthh tthhee uunniitt.. SShhoouulldd aannyy oorriiggiinnaall wwiirree ssuupppplliieedd wwiitthh tthhee uunniitt hhaavvee ttoo bbee rreeppllaacceedd,, iitt MMUUSSTT bbee rreeppllaacceedd wwiitthh wwiirriinngg mmaatteerriiaall hhaavviinngg aa tteemmppeerraattuurree rraattiinngg ooff aatt lleeaasstt 222211°°FF ((110055°°CC))..

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Trane GGAA, GZAA, GGBA, GZBA Installation, Operation And Maintenance Manual

Specifications and Main Features

Frequently Asked Questions

User Manual